{Eencyclopedia}} Thuestes was a location, probably a planet.
It was given to Count Demetrios II Atreides by Emperor Henoor I in 6 BG, and House Atreides/DE had been Counts of Tantalos. During the time of Alman II the House's lands were redistributed. Alkman Atreides successfully petitioned for restoration of the County of Thuestes before the Regent Henli al-Qair in 381 AG.[1]
The County lasted into the time of Duke Mintor Atreides, probably the last known Count Thuestes.[2]